How often do you fill the car's water tank? How many kilometers do you run to add water?

The antifreeze of automobile water tank needs to be replaced after 2 years of use, and it needs to be added when the antifreeze of water tank is lower than the minimum mark, so there is no requirement for kilometers. For those vehicles that run for a long time, such as taxis. Generally, high-quality antifreeze is replaced once a year, while those cars with short running time can be replaced once every two years or 30 thousand kilometers.

In order to prevent excessive foam and reduce the primary heat exchange between antifreeze and engine parts, confirm that the product is within the validity period when adding, and the validity period of long-acting antifreeze can be up to three years. If suspended matter, sediment, deterioration and discoloration are found in antifreeze, the system should be replaced and cleaned in time.

Extended data:

In summer, some car owners will directly add water or mix water with antifreeze instead of pure antifreeze. Professionals remind that these operations are not feasible, and it is easy to cause water evaporation, antifreeze loss and abnormal vehicle temperature, not to mention that long-term tap water has a certain corrosive effect on parts. Therefore, using special antifreeze is the real way to protect your car.

When buying antifreeze, car owners should pay attention to the freezing point and boiling point marked above. In summer, the boiling point of antifreeze should be above 120 degrees Celsius, which can better prevent the car from "boiling". Secondly, antifreeze is added to the engine cooling system, and the inferior antifreeze has corrosive effect to a greater or lesser extent, which will easily lead to damage and leakage of parts after long-term use.

People's Daily Online-Tips for Cold Cars: Antifreeze must be changed once every two years.

Baidu encyclopedia-antifreeze